Ten-year-old Timmy Turner has had it with his babysitter, so he summons his fairy godparents who have the power to grant him wishes.
Timmy finds out that he has to share his fairies with the new girl in school, Chloe Carmichael. But when Chloe realizes she can use her magic for good, she wishes everyone in Dimmsdale would share everything, and chaos ensues.
Catman thinks Timmy has been kidnapped. He mistakes Chloe for Catgirl and enlists her help to save Timmy. Timmy wishes Dad was Mayor, but Timmy gets tortured by the paparazzi and risks having his fairies discovered.
Chloe joins the Squirrely Scouts and saves the troop by helping them get their first merit badge. Timmy and Chloe find out they have the same birthday and compete for the best party.
Chloe's favorite cartoon characters come to life and brainwash Timmy and Wanda. Timmy's enemies learn that he is helpless without his fairies and try to destroy him when he's weak.
Chloe thinks she has a stress-caused rash and wishes to be a slacker, but Dimmsdale falls apart without her. Dad wants to catch a giant fish to win a trophy, but Chloe wishes all the fish could fight back.
Chloe wishes that an animal that looks oddly like Mr. Crocker would no longer be endangered. Timmy, Chloe and the fairies go inside Mr. Crocker to destroy the magical Fairy Flu germs Cosmo sneezed on him.
Cosmo and Wanda spend the night at Chloe's, disguised as Flightless Booby Birds. But when Chloe's parents decide to return the boobies to their natural habitat in the rainforest, Timmy and Chloe have to go and save them.
Chloe's goodness is draining the Anti-Fairy World Wand. Foop disguises himself as a girl to try and break Chloe. Timmy takes Chloe to meet Mark Chang to prove to her that aliens really do exist.
When Timmy and Chloe save Dark Laser's beloved pet, Flipsie, Dark Laser becomes bound to them as their bodyguard. Timmy and Chloe wish up a girlfriend for Mr. Crocker to get him off their backs.
Timmy and Chloe switch places, but when Cosmo loses the wands, they risk being stuck as each other forever. Dad and Timmy enter a film festival for some father-son bonding, but things get out-of-hand when Dad casts Catman.
Mr. Crocker creates Wonky Cosmo and Wanda clones to get into a Fairy Convention to steal all the fairies' magic. Timmy wishes Chloe could live out her favorite dystopian movie, but quickly regrets it when everyone is hungry.
Timmy and Chloe wish their families could go camping together, which starts a feud between their parents. Chloe wishes that she could be a parent so that she can go to the Dimmsdale Daze carnival with Timmy.
Timmy and Chloe have to help a depressed Catman prove to his girlfriend that he's a real superhero. Mr. Crocker teaches his nephew to be a FAIRY catcher.
The Squirrely Scouts go to space to plant a flag in uncharted territory and gain special Flying Squirrely Status. Chloe gives up her summer for research. This upsets her inner child causing her to make crazy sleep wishes.
Despite Timmy's strong warning, Chloe wishes the allegedly "dangerous" class bunny was free. Chloe resorts to stealing when Timmy's Dad buys the only Kale Patch Kid she needs to complete her collection.
Timmy and Chloe become eco-warriors when they save the underwater city of Atlantis from a dangerous "sea monster." Timmy regrets wishing Chloe was the school hall monitor when he sees how seriously she takes the job.
Mrs. Crocker leaves Mr. Crocker home alone for the first time, so he calls on Timmy to teach him how to have fun. Chloe wants to break the attendance record, but Timmy tells her school is canceled and drags her to a taco stand.
Dad takes Mom on what he thinks is a knight-themed cruise to renew their vows, but it's really a knitting cruise. Mr. Bickels hosts a talent show and everyone gets in, but Timmy.
Chloe meets Poof for the first time when he comes home from school on Spring Break. Cosmo and Wanda win a free French Dinner, so Chloe gets to babysit Poof and his friends. All goes well until Vicky shows up.
Yet another Squirrely Scout camping trip goes bad when Mr. Crocker and the Fair Bears show up. Timmy and Chloe's parents won't let them hang out on their friend-aversary because of their social differences.